WO2000011739A1 - Carbone fin soumis a un traitement thermique destine a des cathodes alcalines au manganese - Google Patents

Carbone fin soumis a un traitement thermique destine a des cathodes alcalines au manganese Download PDF

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Publication number
WO2000011739A1
WO2000011739A1 PCT/US1998/008825 US9808825W WO0011739A1 WO 2000011739 A1 WO2000011739 A1 WO 2000011739A1 US 9808825 W US9808825 W US 9808825W WO 0011739 A1 WO0011739 A1 WO 0011739A1
Authority
WO
WIPO (PCT)
Prior art keywords
electrochemical cell
cathode
carbon
fine carbon
heat treated
Prior art date
Application number
PCT/US1998/008825
Other languages
English (en)
Inventor
Lewis F. Urry
Original Assignee
Eveready Battery Company, Inc.
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eveready Battery Company, Inc. filed Critical Eveready Battery Company, Inc.
Priority to AU71729/98A priority Critical patent/AU7172998A/en
Priority to PCT/US1998/008825 priority patent/WO2000011739A1/fr
Priority to EP98918898A priority patent/EP1080507A1/fr
Publication of WO2000011739A1 publication Critical patent/WO2000011739A1/fr

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/62Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624Electric conductive fillers
    • H01M4/625Carbon or graphite
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • H01M4/48Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Definitions

  • the present invention generally relates to a heat treated fine carbon as a
  • EMD electrolytic manganese dioxide
  • the electroconductive material is active material, and carbon as the electroconductive material.
  • the electroconductive material is selected from the active material, and carbon as the electroconductive material.
  • Acetylene black the finest of the carbon blacks, has also been used as a
  • acetylene black is oxidized much faster by Mn ⁇ 2 than graphite, and thus,
  • weight ratio of manganese dioxide:acetylene black ranging from 7: 1 to 12:1.
  • This invention is an electrochemical cell having an anode, a cathode, and an
  • the cathode comprises a heat-treated fine carbon as an electronic conductor.
  • this invention is an alkaline cell having a cathode
  • this invention is an alkaline cell having a cathode
  • mixture comprising fine carbon having a high oxidation resistance of less than 30
  • the alkaline cell of this invention has a cathode that has good oxidation
  • Figure 1 is a graph of effect of particle size on oxidation resistance of heat treated fine
  • Figure 2 is a graph comparing three D-size cells containing different types of
  • a mixture comprising a heat treated fine
  • the heat treated fine carbon of this invention can be produced using a fine
  • the resulting heat treated fine carbon particles have an average particle size diameter in the range of about 50
  • fine carbon particles facilitate formation of an electronically conductive network, with a lesser volume percent of the conductor as compared to graphite, thereby resulting in
  • the fine carbon as used in this invention, can be obtained from various kinds of materials
  • the carbon particles have improved oxidation resistance over
  • a gram of the material to be evaluated is accurately weighed in a 100 milliliter volumetric flask.
  • H2SO4 solution are added to the flask, and mixed thoroughly.
  • normality factor is calculated from the blank which converts milliliters Fe++ to milliliters Cr O 7 "2 .
  • the normality factor is used to calculate
  • the oxidation resistance is expressed as the number of milliliters of K Cr O
  • the heat treated fine carbon according to this invention is 4.5 times more
  • Figure 1 is a graph of effect of particle size on oxidation resistance of heat
  • Figure 2 is a graph comparing three D-size cells containing different types of
  • Cell 1 has heat treated acetylene black as a conductor at 5.8
  • cell 2 has graphite as a conductor at 13.7 volume percent; and cell 3
  • a first cell is constructed using an acetylene black in the cathode mixture.
  • acetylene black obtained from Chevron Corporation, is subjected to heating at
  • black particles having average diameter of about 75 Angstroms, is mixed with electrolytic manganese dioxide active material and teflon as a binder, in the relative
  • volume percent with the remainder being non-solids, mainly as electrolyte and void
  • a second comparative cell is constructed using a cathode comprising 12
  • a third comparative cell is constructed using a cathode comprising 14 volume
  • electrolytic manganese dioxide 7 volume percent inorganic binder.

Abstract

L'invention concerne du carbone fin soumis à un traitement thermique, possédant une dimension des particules réduite ; on peut utiliser ce carbone fin comme élément électroconducteur dans des cathodes de cellules électrochimiques pour réduire le volume occupé par des matières non actives en augmentant le contact entre la matière active et l'élément électroconducteur.
PCT/US1998/008825 1998-05-01 1998-05-01 Carbone fin soumis a un traitement thermique destine a des cathodes alcalines au manganese WO2000011739A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AU71729/98A AU7172998A (en) 1998-05-01 1998-05-01 Heat treated fine carbon for alkaline manganese cathodes
PCT/US1998/008825 WO2000011739A1 (fr) 1998-05-01 1998-05-01 Carbone fin soumis a un traitement thermique destine a des cathodes alcalines au manganese
EP98918898A EP1080507A1 (fr) 1998-05-01 1998-05-01 Carbone fin soumis a un traitement thermique destine a des cathodes alcalines au manganese

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/US1998/008825 WO2000011739A1 (fr) 1998-05-01 1998-05-01 Carbone fin soumis a un traitement thermique destine a des cathodes alcalines au manganese

Publications (1)

Publication Number Publication Date
WO2000011739A1 true WO2000011739A1 (fr) 2000-03-02

Family

ID=22266953

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1998/008825 WO2000011739A1 (fr) 1998-05-01 1998-05-01 Carbone fin soumis a un traitement thermique destine a des cathodes alcalines au manganese

Country Status (3)

Country Link
EP (1) EP1080507A1 (fr)
AU (1) AU7172998A (fr)
WO (1) WO2000011739A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002021615A2 (fr) * 2000-09-07 2002-03-14 The Gillette Company Cathode de pile
EP1365768B1 (fr) * 2001-02-27 2008-05-07 Bayer Schering Pharma Aktiengesellschaft Utilisation d' antagonistes selectifs de l'er-beta comme contraceptifs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152569A (ja) * 1984-01-18 1985-08-10 Mitsubishi Petrochem Co Ltd 新規なカ−ボンブラツク
EP0322806A1 (fr) * 1987-12-29 1989-07-05 Matsushita Electric Industrial Co., Ltd. Pile sèche
JPH0256857A (ja) * 1988-08-23 1990-02-26 Matsushita Electric Ind Co Ltd アルカリマンガン電池

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60152569A (ja) * 1984-01-18 1985-08-10 Mitsubishi Petrochem Co Ltd 新規なカ−ボンブラツク
EP0322806A1 (fr) * 1987-12-29 1989-07-05 Matsushita Electric Industrial Co., Ltd. Pile sèche
US5017445A (en) * 1987-12-29 1991-05-21 Matsushita Electric Industrial Co., Ltd. Dry cell
JPH0256857A (ja) * 1988-08-23 1990-02-26 Matsushita Electric Ind Co Ltd アルカリマンガン電池

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
CHEMICAL ABSTRACTS, vol. 104, no. 12, 24 March 1986, Columbus, Ohio, US; abstract no. 92092y, NISHII, TOSHIBUMI: "New-grade carbon black" XP002073759 *
PATENT ABSTRACTS OF JAPAN vol. 014, no. 222 (E - 0926) 10 May 1990 (1990-05-10) *
STOECKLI H F ET AL: "ON THE PHYSICO-CHEMICAL PROPERTIES OF CARBON BLACKS IN RELATION TO THE PERFORMANCE OF ZN/MNO2 BATTERIES", PROGRESS IN BATTERIES & BATTERY MATERIALS, vol. 15, 1996, pages 81 - 87, XP000727411 *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002021615A2 (fr) * 2000-09-07 2002-03-14 The Gillette Company Cathode de pile
WO2002021615A3 (fr) * 2000-09-07 2002-06-06 Gillette Co Cathode de pile
US6858349B1 (en) 2000-09-07 2005-02-22 The Gillette Company Battery cathode
EP1365768B1 (fr) * 2001-02-27 2008-05-07 Bayer Schering Pharma Aktiengesellschaft Utilisation d' antagonistes selectifs de l'er-beta comme contraceptifs

Also Published As

Publication number Publication date
EP1080507A1 (fr) 2001-03-07
AU7172998A (en) 2000-03-14

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